Regional Weather Summary
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
337 NZUS01 KTFX 221000 RWSTFX MTZ301>330-230000- Regional Weather Synopsis National Weather Service Great Falls MT 400 AM MDT Wed Jul 22 2026 - Daily chances for afternoon showers and thunderstorms through Friday. - Scattered thunderstorms in Southwest Montana on Wednesday have the potential to produce heavy rain and localized flash flooding. - Temperatures will warm up into the upper 90s to mid 100s through the weekend with the warmest temperatures expected on Friday and Saturday. &&